The purpose of the CardioMEMS CED Study is to determine if pulmonary artery (PA) pressure-guided heart failure management using the CardioMEMS™ HF System improves long-term health outcomes in heart failure (HF) patients in the real-world setting.

The CardioMEMS CED Study will assess 2-year HF hospitalization rates and survival for all-cause mortality in heart failure subjects managed with the CardioMEMS HF system, as compared to a contemporaneous control of HF subjects managed without PA pressure-guidance.

Inclusion Criteria:

1. Subject implanted with a CardioMEMS pressure sensor (treatment arm only)
2. Subject >=18 years of age at time of implant
3. Subject has a history of acute decompensated HF or HF-related congestion defined by at least one of the following qualifying event types: HF hospitalization, elevated BNP/NT-proBNP

Exclusion Criteria:

1. Subject has history of heart transplant or durable mechanical circulatory device
2. Subject hospitalized with cardiogenic shock or sepsis
3. Subject received prior PA pressure sensor implant (control arm only)

The study population will include Heart Failure patients in the United States implanted with the CardioMEMS PA pressure sensor and HF patients being managed without PA pressure-monitoring.